Horizons 3e to 169 E

SUPPLEMENT submitted by Intelsat License LLC

Supplement

2016-04-11

This document pretains to SAT-LOA-20151202-00080 for Application to Launch and Operate on a Satellite Space Stations filing.

IBFS_SATLOA2015120200080_1133158

April 11, 2016

Ms. Marlene H. Dortch
Secretary
Federal Communications Commission
445 12th Street, S.W.
Washington, DC 20554

Re:      Supplement to Application to Launch and Operate Horizons 3e at 169.0° E.L.
         Call Sign S2947; File No. SAT-LOA-20151202-00080

Dear Ms. Dortch:

Horizons-3 License LLC, an indirect wholly owned subsidiary of Intelsat S.A. (together “Intelsat”),
hereby supplements the above referenced application. Specifically, Intelsat has revised Exhibits 4, 5,
and 6 of the Engineering Statement to include the Maximum Saturation Flux Density and the Maximum
Beam Peak EIRP Density per beam. In addition, Intelsat herein requests waiver of the requirement in
Section 25.140 to provide an interference analysis for the Appendix 30B frequencies – 10850-10950
MHz and 11200-11450 MHz.1

Under Section 1.3 of the Commission’s rules, the Commission has authority to waive its rules “for good
cause shown.”2 Good cause exists if “special circumstances warrant a deviation from the general rule
and such deviation will serve the public interest” better than adherence to the general rule.3 In
determining whether waiver is appropriate, the Commission should “take into account considerations of
hardship, equity, or more effective implementation of overall policy.”4

Waiver is warranted here because there is no risk of interference into any other co-frequency U.S.
Appendix 30B operations or allotments. At 169.0° E.L., Horizons 3e will be at least 32 degrees from
any U.S. Appendix 30B filing covering the 10850-10950 MHz frequencies. This will provide sufficient
orbital separation to ensure that Horizons 3e does not significantly degrade the interference environment
for any other U.S. Appendix 30B location. Accordingly, an interference analysis is unnecessary.

Intelsat additionally has revised Section 7 of the Horizons 3e Engineering Statement to note that, for the
above stated reasons, it has not included an interference analysis for the Appendix 30B frequencies. For
the Commission’s convenience, Intelsat attaches herewith a revised Engineering Statement that replaces
the prior filed versions.

1
    47 C.F.R. § 25.140.
2
    47 C.F.R. § 1.3; WAIT Radio v. FCC, 418 F.2d 1153, 1159 (D.C. Cir. 1969).
3
    Northeast Cellular Telephone Co. v. FCC, 897 F.2d 1164, 1166 (D.C. Cir. 1990).
4
    WAIT Radio, 418 F.2d at 1159.


Please direct any questions to the undersigned at (703) 559-7848.

Sincerely,

/s/ Susan H. Crandall

Susan H. Crandall
Associate General Counsel
Intelsat Corporation


cc: Kathyrn Medley
    Stephen Duall
    Jay Whaley
    Cindy Spiers


Engineering Statement
1   Introduction
Horizons-3 License LLC (“Intelsat”) seeks authority in this application to launch and
operate a C/Ku-band satellite to be known as Horizons 3e at the 169.0 E.L. orbital
location. Horizons 3e will replace Intelsat 805, which currently operates at 169.0° E.L.,1
and Intelsat 8, which is expected to begin drifting from its current location of 169.0° E.L.
to 168.9° E.L. in early April 2016.2

The characteristics of the Horizons 3e spacecraft, as well as its compliance with the
various provisions of Part 25 of the Federal Communication Commission’s (“FCC or
“Commission”) rules, are provided in the remainder of this Engineering Statement.

2   Spacecraft Overview
Horizons 3e is a Boeing model 702MP spacecraft that is capable of operating in C-band
and Ku-band frequencies listed in the table below.

       C-band:         Uplink:        5925 – 6425 MHz

                       Downlink:      3700 – 4200 MHz

       Ku-band:        Uplink:        12920 – 13250 MHz

                                      13750 – 14500 MHz

                       Downlink:      10850 – 11700 MHz

                                      12200 – 12750 MHz

The spacecraft provides the following coverage:

       C-band:         Global Beam - Global Coverage
       Ku-band:        Spot Beams - Global Coverage


2.1 Spacecraft Characteristics



1
 See Policy Branch Information; Actions Taken, Report No. SAT-01139, File No. SAT-
MOD-20151020-00072 (Feb. 26, 2016) (Public Notice).
2
 See Policy Branch Information; Actions Taken, Report No. SAT-001139, File No.
SAT-MOD-20151021-00073 (Feb. 26, 2016) (Public Notice).


                                       Page 1 of 19


Horizons 3e is a three-axis stabilized type spacecraft that has a rectangular outer body
structure. Horizons 3e utilizes two deployable solar array wings and a number of
deployable and non-deployable antennas.

The Horizons 3e spacecraft is composed of the following subsystems:

   1)   Thermal
   2)   Power
   3)   Attitude Control
   4)   Propulsion
   5)   Telemetry, Command and Ranging (“TC&R”)
   6)   Uplink Power Control (“ULPC”)
   7)   Communications

These subsystems maintain the correct position and attitude of the spacecraft, ensure that
all internal units are maintained within the required temperature range, and ensure that
the spacecraft can be commanded and controlled with a high level of reliability from
launch to the end of its useful life. The spacecraft design incorporates redundancy in
each of the various subsystems in order to avoid single point failures.

The structural design of Horizons 3e provides mechanical support for all subsystems.
The structure supports the communication antennas, solar arrays, and the thrusters. It
also provides a stable platform for preserving the alignment of critical elements of the
spacecraft.

A summary of the basic spacecraft characteristics is provided in Exhibit 1.

2.2 Communication Subsystem
Horizons 3e provides active communication channels at C-band and Ku-band
frequencies. The C-band payload employs channels having bandwidths of 36 MHz and
108 MHz. The Ku-band payload employs channels having bandwidths of 72 MHz, 81
MHz, 108 MHz, and 224 MHz. The Horizons 3e frequency and polarization plan is
provided in Schedule S. Due to the extensive number of channel combinations, the
uplink channels and downlink channels have been listed separately in the Schedule S S10
“Space Station Transponders” table.

Horizons 3e utilizes a multiple spot-beam architecture in Ku-band. In this architecture
each spot beam has an identical design. Therefore, the coverage contours and
performance characteristics for only a single representative spot beam are provided in the
Schedule S. The latitude and longitude of each spot beam’s maximum gain point on the
Earth is provided in Exhibit 2 in conformance with Section 25.114(c)(4)(vii)(B) of the
Commission’s rules. Additionally, Intelsat has included the Schedule S beam designation
for all beams in Exhibit 3.

                                       Page 2 of 19


Exhibits 4 and 5 provide the beam parameters for the Horizons 3e uplink and downlink
beams, respectively.

2.3 Telemetry, Command and Ranging Subsystem
The telemetry, command and ranging (“TC&R”) subsystem provides the following
functions:

   1) Acquisition, processing and transmission of spacecraft telemetry data;

   2) Reception and retransmission of ground station generated ranging signals; and

   3) Reception, processing and distribution of telecommands.

Horizons 3e can be commanded through the use of command channels centered at the
frequencies 5925.5 MHz and 6424.5 MHz. The spacecraft telemetry is received through
two of four telemetry channels centered at the frequencies 4197.75 MHz, 4198.25 MHz,
4198.75 MHz and 4199.75 MHz.

The coverage patterns of the on-station command and telemetry beams are provided in
the Schedule S in the format prescribed in Section 25.114(c)(4)(vi)(A) of the
Commission’s rules. The beams used for orbital maneuvers and on-station emergencies
as well as the on-station beams have gain contours that vary by less than 8 dB across the
surface of the Earth, and accordingly the gain at 8 dB below the peak falls beyond the
edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the
Commission’s rules, contours for these beams are not required to be provided and the
associated GXT files have not been included in Schedule S. The Horizons 3e command
and telemetry subsystem performance is summarized in Exhibit 6.

2.4 Uplink Power Control Subsystem
Horizons 3e utilizes three ULPC channels. The ULPC channel center frequencies are
4199.75 MHz, 11451.0 MHz, and 12200.25 MHz.

The coverage patterns of the ULPC beams have gain contours that vary by less than 8 dB
across the surface of the Earth, and accordingly the gain at 8 dB below the peak falls beyond
the edge of the Earth. Therefore, pursuant to Section 25.114(c)(4)(vi)(A) of the
Commission’s rules, contours for these beams are not required to be provided and the
associated GXT files have not been included in Schedule S. The Horizons 3e ULPC
subsystem performance is summarized in Exhibit 6.

2.5 Satellite Station-Keeping
The spacecraft will be maintained within 0.05° of its nominal longitudinal position in the
east-west direction. Accordingly, it will comply with Section 25.210(j) of the
Commission’s rules.


                                        Page 3 of 19


The attitude of the spacecraft will be maintained with accuracy consistent with the
achievement of the specified communications performance, after taking into account all
error sources (i.e., attitude perturbations, thermal distortions, misalignments, orbital
tolerances and thruster perturbations, etc.).

3   Services and Emission Designators
Horizons 3e will be a general purpose communications satellite and has been designed to
support various services offered within Intelsat’s satellite system. Depending upon the
needs of the users, the transponders on Horizons 3e can accommodate television, radio,
voice, and data communications. Typical communication services include:

    a) Compressed digital video

    b) High speed digital data

    c) Digital single channel per carrier (“SCPC”) data channels

Emission designators and allocated bandwidths for representative communication carriers
are provided in Schedule S.

4   Power Flux Density (“PFD”)
The power flux density (“PFD”) limits for space stations operating in the 3700 – 4200
MHz, 10950 – 11200 MHz, and 11450 – 11700 MHz are contained in Section 25.208 of
the Commission’s rules. With respect to the frequency bands 10850 – 10950 MHz,
11200 – 11450 MHz and 12200 - 12750 MHz, there are PFD limits specified in No.
21.16 of the ITU Radio Regulations.

The maximum PFD levels for the Horizons 3e transmissions were calculated for the 3700
– 4200 MHz, 10850 – 11700 MHz, and 12200 – 12750 MHz. The PFD levels were also
calculated for the Horizons 3e telemetry and ULPC carriers. The results are provided in
Schedule S and show that the downlink power flux density levels of the Horizons 3e
carriers do not exceed the limits specified in Sections 25.208 of the Commission’s rules
or the limits specified in No. 21.16 of the ITU Radio Regulations.

5   Emission Compliance
Section 25.202(e) of the Commission’s rules requires that the carrier frequency of each
space station transmitter be maintained within 0.002% of the reference frequency.
Horizons 3e is designed to be compliant with the provisions of this rule.

Intelsat will comply with the provisions of Section 25.202(f) of the Commission’s rules
with regard to Horizons 3e emissions.

6   Orbital Location

                                      Page 4 of 19


Intelsat requests that it be assigned the 169.0° E.L. orbital location for Horizons 3e. The
169.0° E.L. location satisfies Horizons 3e requirements for optimizing coverage,
elevation angles, and service availability. Additionally, the location also ensures that the
maximum operational, economic, and public interest benefits will be derived.

7    Interference Analysis
The impact of the proposed Horizons 3e emissions on adjacent satellites located at 167.0°
E.L. and 171.0º E.L. was analyzed. The interference analysis was conducted for a
number of representative carriers at C-band and Ku-band frequencies. It was assumed
that there were hypothetical satellites having the same operating characteristics as
Horizons 3e at the 167.0° E.L. 3 and 171.0E.L. orbital locations.

For the satellite located at 167.0º E.L., it was assumed that the adjacent satellites were
Horizons 3e, located at 169.0º E.L., and a hypothetical satellite having the same operating
characteristics as Horizons 3e located at 165.0º E.L.4 For the satellite located at 171.0º
E.L., it was assumed that the adjacent satellites were Horizons 3e, located at 169.0º E.L.,
and a hypothetical satellite having the same operating characteristics as Horizons 3e
located at 173.0º E.L.5

Other assumptions made for the interference analysis were as follows:

    a) In the plane of the geostationary satellite orbit, all transmitting and receiving earth
       station antennas have off-axis co-polar gains that are compliant with the limits
       specified in section 25.209(a) of the FCC rules.
    b) All transmitting and receiving earth stations have a cross-polarization isolation
       value of at least 30 dB within their main beam lobe.
    c) At C-band frequencies, degradation due to rain is not considered, given that rain
       (attenuation) effects are insignificant at C-band.
    d) At Ku-band frequencies rain attenuation predictions are derived using
       Recommendation ITU-R P.618.
    e) At Ku-band frequencies, increase in noise temperature of the receiving earth
       station due to rain is taken into account.


3
 At the time of submission of this application, Luch-5A is located at 167° E.L. Its frequency plan overlaps
Intelsat 805 in the 12500 – 12750 MHz band. Luch-5A was not included in the interference analysis
because it is not licensed by the United States nor does it have U.S. market access. Intelsat is coordinating
the use of the overlapping frequencies pursuant to ITU rules.
4
  At the time of submission of this application, Intelsat 19 is located at 166E.L. Intelsat 19 is not included
in the interference analysis because it is less than 2 away from 167 E.L., and so its use in the interference
analysis would be inconsistent with a two-degree orbital separation environment and policy.
5
 Other satellites in the vicinity of 167 E.L. and 171 E.L. were not included in the interference analysis
because they are not licensed by the United States nor do they have U.S. market access. Intelsat is
coordinating the use of the overlapping frequencies pursuant to ITU rules.

                                                Page 5 of 19


    f) For the cases where the transponder operates in a multi-carrier mode, the effects
       due to intermodulation interference are taken into account.

All assumptions and the results of the analysis are documented in Exhibits 7, 8, and 9.
The minimum orbital separation between the Horizons 3e planned orbital location and
any other United States Appendix 30B allotments, assignments, or operations in the
10850 – 10950 MHz and 11200 – 11450 MHz bands is 32 degrees. The orbital separation
will provide sufficient isolation to ensure that Horizons 3e will not cause significant
degradation to the interference environment of any other United States Appendix 30B
plan locations, and therefore a separate interference analysis for the Appendix 30B
allotments, assignments, and operations is not provided.

The Horizons 3e transmissions will be limited to those levels contained in Sections
25.212(c) and (d) and Section 25.138 of the Commission’s rules, as applicable, unless
higher levels are coordinated with potentially affected adjacent satellite operators. In any
case, pursuant to the results in Exhibits 7, 8, and 9, the uplink power density of the
Horizons 3e digital carriers will not exceed the levels specified below:

       a) 5925 – 6425 MHz:             -42.0 dBW/Hz
       b) 12920 – 14500 MHz:           -42.0 dBW/Hz


The downlink EIRP density of Horizons 3e digital carriers will not exceed the levels
specified below:

       a) 3700 – 4200 MHz:             -32.0 dBW/Hz
       b) 10850 – 11700 MHz            -20.0 dBW/Hz
       c) 12200 – 12750 MHz            -20.0 dBW/Hz



8   Orbital Debris Mitigation Plan
Intelsat is proactive in ensuring safe operation and disposal of this and all spacecraft
under its control. The four elements of debris mitigation are addressed below.

8.1 Spacecraft Hardware Design
The spacecraft is designed such that no debris will be released during normal operations.
Intelsat has assessed the probability of collision with meteoroids and other small debris
(<1 cm diameter) and has taken the following steps to limit the effects of such collisions:
(1) critical spacecraft components are located inside the protective body of the spacecraft
and properly shielded; and (2) all spacecraft subsystems have redundant components to
ensure no single-point failures. The spacecraft does not use any subsystems for end-of-
life disposal that are not used for normal operations.

                                        Page 6 of 19


8.2 Minimizing Accidental Explosions
Intelsat has assessed the probability of accidental explosions during and after completion
of mission operations. The spacecraft is designed in a manner to minimize the potential
for such explosions. Propellant tanks and thrusters are isolated using redundant valves
and electrical power systems are shielded in accordance with standard industry practices.
At the completion of the mission and upon disposal of the spacecraft, Intelsat will ensure
the removal of all stored energy on the spacecraft by depleting all propellant tanks,
venting all pressurized systems and by leaving the batteries in a permanent discharge
state.

8.3 Safe Flight Profiles
Intelsat has assessed and limited the probability of the space station becoming a source of
debris as a result of collisions with large debris or other operational space stations. With
the potential exception of co-location during a traffic transition period, Horizons 3e will
not be located at the same orbital location as another satellite or at an orbital location that
has an overlapping station keeping volume with another satellite.

Horizons 3e will replace Intelsat 8 and Intelsat 805 at 169.0° E.L. These satellites may
be nominally collocated during transfer of traffic and Intelsat will ensure that sufficient
spatial separation is achieved between these two satellites through the use of orbit
eccentricity and inclination offsets and thus minimize the risk of collision. Intelsat is not
aware of any other FCC licensed system, or any other system applied for and under
consideration by the FCC, having an overlapping station-keeping volume with Horizons
3e. Intelsat is also not aware of any system with an overlapping station-keeping volume
with Horizons 3e that is the subject of an ITU filing and that is either in orbit or
progressing towards launch.

8.4 Post Mission Disposal
At the end of the mission, Intelsat will dispose of the spacecraft by moving it to a
minimum altitude 300 kilometers above the geostationary arc. Intelsat has reserved 2.0
kilograms of xenon for this purpose. The reserved fuel figure was determined by the
spacecraft manufacturer and provided for in the propellant budget. This figure was
calculated taking into account the expected mass of the satellite at the end of life and the
required delta-velocity to achieve the desired orbit. The fuel gauging uncertainty has
been taken into account in these calculations.

In calculating the disposal orbit, Intelsat has used simplifying assumptions as permitted
under the Commission’s Orbital Debris Report and Order.6 For reference, the effective


6
 Mitigation of Orbital Debris, Second Report and Order, IB Docket No. 02-54, FCC 04-130 (rel. June 21,
2004).

                                            Page 7 of 19


area to mass ratio (Cr*A/M) of the Horizons 3e spacecraft is 0.045 m2/kg, resulting in a
minimum perigee disposal altitude under the Inter-Agency Space Debris Coordination
Committee formula of at most 280 kilometers above the geostationary arc. Accordingly,
the Horizons 3e planned disposal orbit complies with the FCC’s rules.

9   ITU Filings
Horizons 3e’s operations in the 3700 – 4200 MHz, 5925 – 6425 MHz, 12250 – 12750
MHz, and 14000 – 14500 MHz bands have been coordinated under the Administration of
the United States’ International Telecommunication Union (“ITU”) filing USASAT-60J.

Horizons 3e’s operations in the 11450 – 11700 MHz band have been coordinated under
the Administration of the United States’ International Telecommunication Union (“ITU”)
filing USASAT-55L.

Horizons 3e’s operations in the 13750 – 14000 MHz band have been coordinated under
the Administration of the United States’ International Telecommunication Union (“ITU”)
filing USASAT-55V.

Intelsat currently has no United States filing with the ITU for a satellite network that
specifies operation in the frequency bands 12750 – 13250 MHz, 10700 – 10950 MHz,
10950 – 11200 MHz, and 11200 – 11450 MHz at the nominal orbital location of 169°
E.L. Intelsat will submit to the Commission Appendix 4 information for a new satellite
network that utilizes these frequency bands at the nominal orbital longitude of 169° E.L.,
to be forwarded to the ITU. Intelsat will also include Appendix 4 information for the
11450 – 11700 MHz frequency band.

10 TC&R Control Earth Stations
Intelsat will conduct TC&R operations through one or more of the following earth
stations: Fillmore, CA; Paumalu, Hawaii; or Mingenew, Australia. Additionally, Intelsat
is capable of remotely controlling Horizons 3e from its facilities in McLean, VA or Long
Beach, CA.




                                       Page 8 of 19


Certification Statement

I hereby certify that I am a technically qualified person and am familiar with Part 25 of
the Commission’s rules. The contents of this engineering statement were prepared by me
or under my direct supervision and to the best of my knowledge are complete and
accurate.



          /s/ Candice DeVane                                 April 8, 2016

         Candice DeVane                                           Date
              Intelsat
      Manager, Spectrum Policy




                                      Page 9 of 19


                               EXHIBIT 1
         SUMMARY OF SPACECRAFT CHARACTERISTICS


                      General Spacecraft Characteristics
Spacecraft Name                         Horizons 3e

Orbital Location                        60.0° E.L.

Spacecraft Manufacturer                 Boeing

Spacecraft Model                        702 MP

Spacecraft Type                         3-axis stabilized

Spacecraft Expected Lifetime            15 years

Eclipse Capability                      100%

Station-keeping
  North-South                           ±0.05°
  East-West                             ±0.05°

Propulsion Type                         Xenon Ion Propulsion Subsystem




                                 Page 10 of 19


      EXHIBIT 2
SPOT BEAM LOCATIONS

  Beam          Longitude     Latitude
Designation        (°E)         (°N)
              Ku-Band Beams
Ku Spot P1        183.9        -24.0
Ku Spot P2        146.4        -19.5
Ku Spot P3        206.6          4.5
Ku Spot P4        169.0          8.5
Ku Spot P5        130.1         13.3
Ku Spot P6        199.3         41.5
Ku Spot P7        147.5         48.0




              Page 11 of 19


                                 EXHIBIT 3
                    Beam Polarizations and GXT File Names

                                            Schedule S Beam GXT File Names
                              Linear Polarization                    Circular Polarization
    Beam
  Designation       Uplink     Uplink Downlink Downlink Uplink               Uplink Downlink Downlink
                   (H-Pol.)   (V-Pol.) (H-Pol.) (V-Pol.) (LHCP)             (RHCP) (LHCP) (RHCP)
                                          C-Band Beams
  Global Beam         ----       ----       ----       ----      GLR*       GRR*        GLT*       GRT*
    ULPC1             ----       ----     CLHD*        ----        ----       ----       ----        ----
   Telemetry
                      ----       ----     TGHD*                    ----       ----       ----        ----
    Global
   Command
                      ----    CGVU*         ----       ----        ----       ----       ----        ----
    Global
Telemetry Pipe        ----       ----       ----       ----      ----         ----     TPLD*         ----
Telemetry Hemi        ----       ----       ----       ----      ----         ----     THLD*         ----
Command Pipe          ----       ----       ----       ----     CPLU*         ----      ----         ----
Command Hemi          ----       ----       ----       ----     CHLU*         ----      ----         ----

                                               Ku-Band Beams
      Spot P          PHR         PVR        PHT        PVT         ----       ----        ----      ----
      ULPC2            ----        ----       ----      ----        ----       ----        ----    KLRD*
      ULPC3            ----        ----       ----      ----        ----       ----     KLLD*        ----
* GXT files are not provided for the indicated beams because their -8 dB gain contours extend beyond the edge
of the Earth.




                                              Page 12 of 19


                   EXHIBIT 4
COMMUNICATION SUBSYSTEM UPLINK BEAM PARAMETERS
    Beam Name                                   Ku-Band Horizontal                   Ku-Band Vertical
             Schedule S Beam ID                         PHR                                 PVR
           Frequency Band (MHz)            12920 – 13250 & 13750 - 14500       12920 – 13250 & 13750 - 14500
                 Polarization                        Horizontal                           Vertical
           Beam Peak Gain (dBi)                         29.6                                29.6
                 G/T (dB/K)                              4.0                                 4.0
         Minimum SFD-- (dBW/m2)                        -106.0                              -106.0
         Maximum SFD-- (dBW/m2)                         -86.0                               -86.0
    Beam Name                                  C-Band Global LHCP                  C-Band Global RHCP
    Schedule S Beam ID                                 GLR*                                GRR*
    Frequency Band (MHz)                            5925 - 6425                         5925 - 6425
    Polarization                                       LHCP                               RHCP
    Beam Peak Gain (dBi)                                21.1                                21.1
    G/T (dB/K)                                           -6.0                                -6.0
    Minimum SFD-- (dBW/m2)                             -102.0                              -102.0
    Maximum SFD-- (dBW/m2)                              -82.0                               -82.0
 * GXT files are not provided for the indicated beams because their -8 dB gain contours extend beyond the edge
 of the Earth.

 Note:     RHCP: Right Hand Circular Polarization, LHCP: Left Hand Circular Polarization




                                                 Page 13 of 19


                                              EXHIBIT 5

    COMMUNICATION SUBSYSTEM DOWNLINK BEAM PARAMETERS
   Beam Name                                  Ku-Band Horizontal                   Ku-Band Vertical
   Schedule S Beam ID                                PHT                                 PVT
   Frequency Band (MHz)                  10850 – 11700 & 12200 - 12750       10850 – 11700 & 12200 - 12750
   Polarization                                    Horizontal                           Vertical
   Peak Antenna Gain (dBi)                           27.8                                27.8
   EIRP (dBW)                                        49.5                                49.5
   Maximum Beam Peak EIRP Density
                                                     16.0                                  16.0
   (dBW/4kHz)
   Beam Name                                 C-Band Global LHCP                   C-Band Global RHCP
   Schedule S Beam ID                              GLT*                                 GRT*
   Frequency Band (MHz)                          3700 - 4200                          3700 - 4200
   Polarization                                    LHCP                                 RHCP
   Peak Antenna Gain (dBi)                          21.0                                 21.0
   EIRP (dBW)                                       36.0                                 36.0
   Maximum Beam Peak EIRP Density
                                                      4.0                                  4.0
   (dBW/4kHz)
* GXT files are not provided for the indicated beams because their -8 dB gain contours extend beyond the
edge of the Earth.
Note:    RHCP - Right Hand Circular Polarization, LHCP - Left Hand Circular Polarization




                                               Page 14 of 19


                                     EXHIBIT 6
                          TC&R SUBSYSTEM CHARACTERISTICS
      Beam Name                 Command – Global Hemi       Command – Aft Pipe     Command – Global Horn
                                 Transfer Orbit & On-       Transfer Orbit & On-
      Description                                                                        On-Station
                                  station Contingency       station Contingency
      Schedule S Beam ID                CHLU*                      CPLU*                  CGVU*
      Frequencies (MHz)                 5925.5                     6425.5                  6425.5
      Polarization                      LHCP                       LHCP                   Vertical
      Beam Peak Gain (dBi)                4.8                        1.2                    20.8
      Beam Name                 Telemetry – Global Hemi     Telemetry – Aft Pipe   Telemetry – Global Horn
      Schedule S Beam ID               THLD*                     TPLD*                    TGHD*
                                   4197.75, 4198.25,         4197.75, 4198.25,        4197.75, 4198.25,
      Frequencies (MHz)
                                   4198.75, 4199.25          4198.75, 4199.25         4198.75, 4199.25
      Polarization                      LHCP                      LHCP                   Horizontal
      Peak Antenna Gain (dBi)             3.3                        7.6                    20.1
      Maximum EIRP (dBW)                 11.9                       15.4                    13.7
      Maximum Beam Peak
      EIRP Density                       -6.1                       -2.6                    -4.3
      (dBW/4kHz)
      Beam Name                        ULPC 1                      ULPC 2                 ULPC 3
      Schedule S Beam ID               CLHD*                       KLRD*                  KLLD*
      Frequencies (MHz)                4199.75                     11451.0                12200.25
      Polarization                    Horizontal                   RHCP                    RHCP
      Peak Antenna Gain (dBi)            11.5                       18.1                    19.4
      Maximum EIRP (dBW)                  9.4                       16.0                    16.8
      Maximum Beam Peak
      EIRP Density                        4.4                       12.0                    13.8
      (dBW/4kHz)


* GXT files are not provided for the indicated beams because their -8 dB gain contours extend beyond the edge
of the Earth.

Note: RHCP: Right Hand Circular Polarization, LHCP: Left Hand Circular Polarization




                                                   Page 15 of 19


                        EXHIBIT 7
HYPOTHETICAL 167°E SATELLITE INTERFERENCE ANALYSIS
UPLINK BEAM INFORMATION
Uplink Beam Name                                  PVR/PHR               PVR/PHR               PVR/PHR               PVR/PHR
Uplink Frequency (MHz)                              14271                 14271                 14271                 14271
Uplink Beam Polarization                      Vertical/Horizontal   Vertical/Horizontal   Vertical/Horizontal   Vertical/Horizontal
Uplink Beam Peak G/T (dB/K)                          4.0                   4.0                   4.0                   4.0
Uplink Beam Peak SFD (dBW/m2)                        -89.2                 -89.2                 -89.2                 -89.2
Uplink Relative Contour Level (dB)                   -8.5                  -8.5                  -8.5                  -8.5
DOWNLINK BEAM INFORMATION
Downlink Beam Name                                PHT/PVT               PHT/PVT               PHT/PVT               PHT/PVT
Downlink Frequency (MHz)                            11371                 11371                 11371                 11371
Downlink Beam Polarization                    Horizontal/Vertical   Horizontal/Vertical   Horizontal/Vertical   Horizontal/Vertical
Downlink Beam Peak EIRP (dBW)                        49.5                  49.5                  49.5                  49.5
Downlink Relative Contour Level (dB)                 -8.5                  -8.5                  -8.5                  -8.5
ADJACENT SATELLITE 1
Satellite Name                                   Horizons 3e           Horizons 3e           Horizons 3e           Horizons 3e
Orbital Location                                    169E                  169E                  169E                  169E
Uplink Power Density (dBW/Hz)                        -42.0                 -42.0                 -42.0                 -42.0
Beam Peak Downlink EIRP Density (dBW/Hz)             -20.0                 -20.0                 -20.0                 -20.0
ADJACENT SATELLITE 2
Satellite Name                                Hypothetical 165E     Hypothetical 165E     Hypothetical 165E     Hypothetical 165E
Orbital Location                                    165E                  165E                  165E                  165E
Uplink Power Density (dBW/Hz)                        -50                   -50                   -50.0                 -50.0
Beam Peak Downlink EIRP Density (dBW/Hz)             -26.0                 -26.0                 -26.0                 -26.0
CARRIER INFORMATION
Carrier ID                                        36M0G7W               8M25G7W               1M73G7W               382KG7W
Carrier Modulation                                  QPSK                  QPSK                  QPSK                  QPSK
Information Rate(kbps)                              36860                  8448                  1024                  256
Code Rate                                        3/4x188/204               3/4                   1/2                   1/2
Occupied Bandwidth(kHz)                            26664.7                6111.3                 1284                  273
Allocated Bandwidth(kHz)                            36000                 8250.5                 1733                  382
Minimum C/N, Rain (dB)                               7.3                   7.3                   1.8                   1.2
UPLINK EARTH STATION
Earth Station Diameter (meters)                      6.5                   4.0                   2.4                   2.4
Earth Station Gain (dBi)                             57.4                  53.1                  48.7                  48.7
DOWNLINK EARTH STATION
Earth Station Diameter (meters)                      6.5                   6.5                   4.0                   2.4
Earth Station Gain (dBi)                             55.6                  55.6                  51.4                  47.0
Earth Station G/T (dB/K)                             34.0                  34.0                  29.0                  25.0
COMPOSITE LINK PERFORMANCE
C/N Thermal Uplink (dB)                              18.2                  16.6                  14.5                  14.1
Uplink Interference C/I (dB)                         29.1                  30.8                  25.0                  30.7
Uplink Adjacent Satellite C/I (dB)                   14.3                  12.7                  10.6                  10.2
Intermodulation C/IM (dB)                             ----                 35.2                  32.0                  33.4
Downlink Thermal C/N (dB)                            18.9                  16.9                  9.7                   5.3
Downlink Interference C/I (dB)                       28.4                  26.3                  20.1                  24.0
Downlink Adjacent Satellite C/I (dB)                 24.0                  22.3                  15.9                  11.1


Subtotal C/N (dB)                                    11.4                  9.8                   5.7                   2.9
Antenna Mispointing and Other Losses (dB)            0.3                   0.3                   0.3                   0.3
Total C/N (dB)                                       11.1                  9.5                   5.4                   2.6
Minimum Required C/N (dB)                            7.3                   7.3                   1.8                   1.2
CARRIER DENSITY LEVELS
Uplink Power Density (dBW/Hz)                        -55.6                 -52.8                 -50.6                 -51.0
Downlink EIRP Density At Beam Peak (dBW/Hz)          -30.3                 -31.9                 -34.1                 -34.5




                                                     Page 16 of 19


UPLINK BEAM INFORMATION
Uplink Beam Name                                 GLR/GRR             GLR/GRR             GLR/GRR             GLR/GRR
Uplink Frequency (MHz)                              6145                6145                6145                6145
Uplink Beam Polarization                        LHCP/RHCP           LHCP/RHCP           LHCP/RHCP           LHCP/RHCP
Uplink Beam Peak G/T (dB/K)                         -6.0                -6.0                -6.0                -6.0
Uplink Beam Peak SFD (dBW/m2)                       -82.2               -82.2               -82.2               -82.2
Uplink Relative Contour Level (dB)                  -1.0                -1.0                -1.0                -1.0
DOWNLINK BEAM INFORMATION
Downlink Beam Name                               GRT / GLT           GRT / GLT           GRT / GLT           GRT / GLT
Downlink Frequency (MHz)                            3920                3920                3920                3920
Downlink Beam Polarization                      RHCP/LHCP           RHCP/LHCP           RHCP/LHCP           RHCP/LHCP
Downlink Beam Peak EIRP (dBW)                       36.0                36.0                36.0                36.0
Downlink Relative Contour Level (dB)                -3.5                -3.5                -3.5                -3.5
ADJACENT SATELLITE 1
Satellite Name                                  Horizons 3e         Horizons 3e         Horizons 3e         Horizons 3e
Orbital Location                                    169E                169E                169E                169E
Uplink Power Density (dBW/Hz)                       -38.7               -38.7               -38.7               -38.7
Beam Peak Downlink EIRP Density (dBW/Hz)            -32.0               -32.0               -32.0               -32.0
ADJACENT SATELLITE 2
Satellite Name                                Hypothetical 165E   Hypothetical 165E   Hypothetical 165E   Hypothetical 165E
Orbital Location                                    165E                165E                165E                165E
Uplink Power Density (dBW/Hz)                       -38.7               -38.7               -38.7               -38.7
Beam Peak Downlink EIRP Density (dBW/Hz)            -32.0               -32.0               -32.0               -32.0
CARRIER INFORMATION
Carrier ID                                       36M0G7W             8M25G7W             1M73G7W             382KG7W
Carrier Modulation                                 QPSK                QPSK                QPSK                QPSK
Information Rate(kbps)                             36860                8448                1024                256
Code Rate                                        3/4x188/204             3/4                 1/2                 1/2
Occupied Bandwidth(kHz)                            24500               6111.3               1284                273
Allocated Bandwidth(kHz)                           36000               8250.5               1733                382
Minimum C/N, Rain (dB)                               7.3                 7.3                 1.8                 4.6
UPLINK EARTH STATION
Earth Station Diameter (meters)                      7.5                 5.5                 5.5                 2.4
Earth Station Gain (dBi)                            51.2                48.6                48.6                41.4
DOWNLINK EARTH STATION
Earth Station Diameter (meters)                      5.5                 7.5                 5.0                 5.5
Earth Station Gain (dBi)                            45.4                48.1                44.6                45.4
Earth Station G/T (dB/K)                            27.0                29.0                22.7                27.0
COMPOSITE LINK PERFORMANCE
C/N Thermal Uplink (dB)                             24.3                23.7                23.1                24.1
Uplink Interference C/I (dB)                        30.2                30.1                30.4                53.1
Uplink Adjacent Satellite C/I (dB)                  17.2                17.2                16.6                17.6
Intermodulation C/IM (dB)                            ----               20.1                19.9                22.1
Downlink Thermal C/N (dB)                           17.2                16.2                 9.1                14.3
Downlink Interference C/I (dB)                      26.8                25.3                21.7                26.1
Downlink Adjacent Satellite C/I (dB)                13.8                13.5                 9.1                10.9


Subtotal C/N (dB)                                   10.6                 9.8                 5.4                 8.3
Antenna Mispointing and Other Losses (dB)            0.3                 0.3                 0.3                 0.3
Total C/N (dB)                                      10.3                 9.5                 5.1                 7.6
Minimum Required C/N (dB)                            7.3                 7.3                 1.8                 4.6
CARRIER DENSITY LEVELS
Uplink Power Density (dBW/Hz)                       -47.8               -43.8               -44.4               -39.9
Downlink EIRP Density At Beam Peak (dBW/Hz)         -39.9               -41.3               -42.1               -41.4




                                                     Page 17 of 19


     HYPOTHETICAL 171°E SATELLITE INTERFERENCE ANALYSIS
UPLINK BEAM INFORMATION
Uplink Beam Name                                  PVR/PHR               PVR/PHR               PVR/PHR               PVR/PHR
Uplink Frequency (MHz)                              14271                 14271                 14271                 14271
Uplink Beam Polarization                      Vertical/Horizontal   Vertical/Horizontal   Vertical/Horizontal   Vertical/Horizontal
Uplink Beam Peak G/T (dB/K)                          4.0                   4.0                   4.0                   4.0
Uplink Beam Peak SFD (dBW/m2)                        -89.2                 -89.2                 -89.2                 -89.2
Uplink Relative Contour Level (dB)                   -8.5                  -8.5                  -8.5                  -8.5
DOWNLINK BEAM INFORMATION
Downlink Beam Name                                PHT/PVT               PHT/PVT               PHT/PVT               PHT/PVT
Downlink Frequency (MHz)                            11371                 11371                 11371                 11371
Downlink Beam Polarization                    Horizontal/Vertical   Horizontal/Vertical   Horizontal/Vertical   Horizontal/Vertical
Downlink Beam Peak EIRP (dBW)                        49.5                  49.5                  49.5                  49.5
Downlink Relative Contour Level (dB)                 -8.5                  -8.5                  -8.5                  -8.5
ADJACENT SATELLITE 1
Satellite Name                                   Horizons 3e           Horizons 3e           Horizons 3e           Horizons 3e
Orbital Location                                    169E                  169E                  169E                  169E
Uplink Power Density (dBW/Hz)                        -42.0                 -42.0                 -42.0                 -42.0
Beam Peak Downlink EIRP Density (dBW/Hz)             -20.0                 -20.0                 -20.0                 -20.0
ADJACENT SATELLITE 2
Satellite Name                                Hypothetical 173E     Hypothetical 173E     Hypothetical 173E     Hypothetical 173E
Orbital Location                                    173E                  173E                  173E                  173E
Uplink Power Density (dBW/Hz)                        -50                   -50                   -50.0                 -50.0
Beam Peak Downlink EIRP Density (dBW/Hz)             -26.0                 -26.0                 -26.0                 -26.0
CARRIER INFORMATION
Carrier ID                                        36M0G7W               8M25G7W               1M73G7W               382KG7W
Carrier Modulation                                  QPSK                  QPSK                  QPSK                  QPSK
Information Rate(kbps)                              36860                  8448                  1024                  256
Code Rate                                        3/4x188/204               3/4                   1/2                   1/2
Occupied Bandwidth(kHz)                            26664.7                6111.3                 1284                  273
Allocated Bandwidth(kHz)                            36000                 8250.5                 1733                  382
Minimum C/N, Rain (dB)                               7.3                   7.3                   1.8                   1.2
UPLINK EARTH STATION
Earth Station Diameter (meters)                      6.5                   4.0                   2.4                   2.4
Earth Station Gain (dBi)                             57.4                  53.1                  48.7                  48.7
DOWNLINK EARTH STATION
Earth Station Diameter (meters)                      6.5                   6.5                   4.0                   2.4
Earth Station Gain (dBi)                             55.6                  55.6                  51.4                  47.0
Earth Station G/T (dB/K)                             34.0                  34.0                  29.0                  25.0
COMPOSITE LINK PERFORMANCE
C/N Thermal Uplink (dB)                              18.2                  16.6                  14.5                  14.1
Uplink Interference C/I (dB)                         29.1                  30.8                  25.0                  30.7
Uplink Adjacent Satellite C/I (dB)                   14.3                  12.7                  10.6                  10.2
Intermodulation C/IM (dB)                             ----                 35.2                  32.0                  33.4
Downlink Thermal C/N (dB)                            18.9                  16.9                  9.7                   5.3
Downlink Interference C/I (dB)                       28.4                  26.3                  20.1                  24.0
Downlink Adjacent Satellite C/I (dB)                 24.0                  22.3                  15.9                  11.1


Subtotal C/N (dB)                                    11.4                  9.8                   5.7                   2.9
Antenna Mispointing and Other Losses (dB)            0.3                   0.3                   0.3                   0.3
Total C/N (dB)                                       11.1                  9.5                   5.4                   2.6
Minimum Required C/N (dB)                            7.3                   7.3                   1.8                   1.2
CARRIER DENSITY LEVELS
Uplink Power Density (dBW/Hz)                        -55.6                 -52.8                 -50.6                 -51.0
Downlink EIRP Density At Beam Peak (dBW/Hz)          -30.3                 -31.9                 -34.1                 -34.5




                                                     Page 18 of 19


UPLINK BEAM INFORMATION
Uplink Beam Name                                 GLR/GRR             GLR/GRR             GLR/GRR             GLR/GRR
Uplink Frequency (MHz)                              6145                6145                6145                6145
Uplink Beam Polarization                        LHCP/RHCP           LHCP/RHCP           LHCP/RHCP           LHCP/RHCP
Uplink Beam Peak G/T (dB/K)                         -6.0                -6.0                -6.0                -6.0
Uplink Beam Peak SFD (dBW/m2)                       -82.2               -82.2               -82.2               -82.2
Uplink Relative Contour Level (dB)                  -1.0                -1.0                -1.0                -1.0
DOWNLINK BEAM INFORMATION
Downlink Beam Name                               GRT / GLT           GRT / GLT           GRT / GLT           GRT / GLT
Downlink Frequency (MHz)                            3920                3920                3920                3920
Downlink Beam Polarization                      RHCP/LHCP           RHCP/LHCP           RHCP/LHCP           RHCP/LHCP
Downlink Beam Peak EIRP (dBW)                       36.0                36.0                36.0                36.0
Downlink Relative Contour Level (dB)                -3.5                -3.5                -3.5                -3.5
ADJACENT SATELLITE 1
Satellite Name                                  Horizons 3e         Horizons 3e         Horizons 3e         Horizons 3e
Orbital Location                                    169E                169E                169E                169E
Uplink Power Density (dBW/Hz)                       -38.7               -38.7               -38.7               -38.7
Beam Peak Downlink EIRP Density (dBW/Hz)            -32.0               -32.0               -32.0               -32.0
ADJACENT SATELLITE 2
Satellite Name                                Hypothetical 173E   Hypothetical 173E   Hypothetical 173E   Hypothetical 173E
Orbital Location                                    173E                173E                173E                173E
Uplink Power Density (dBW/Hz)                       -38.7               -38.7               -38.7               -38.7
Beam Peak Downlink EIRP Density (dBW/Hz)            -32.0               -32.0               -32.0               -32.0
CARRIER INFORMATION
Carrier ID                                       36M0G7W             8M25G7W             1M73G7W             382KG7W
Carrier Modulation                                 QPSK                QPSK                QPSK                QPSK
Information Rate(kbps)                             36860                8448                1024                256
Code Rate                                        3/4x188/204             3/4                 1/2                 1/2
Occupied Bandwidth(kHz)                            24500               6111.3               1284                273
Allocated Bandwidth(kHz)                           36000               8250.5               1733                382
Minimum C/N, Rain (dB)                               7.3                 7.3                 1.8                 4.6
UPLINK EARTH STATION
Earth Station Diameter (meters)                      7.5                 5.5                 5.5                 2.4
Earth Station Gain (dBi)                            51.2                48.6                48.6                41.4
DOWNLINK EARTH STATION
Earth Station Diameter (meters)                      5.5                 7.5                 5.0                 5.5
Earth Station Gain (dBi)                            45.4                48.1                44.6                45.4
Earth Station G/T (dB/K)                            27.0                29.0                22.7                27.0
COMPOSITE LINK PERFORMANCE
C/N Thermal Uplink (dB)                             24.3                23.7                23.1                24.1
Uplink Interference C/I (dB)                        30.2                30.1                30.4                53.1
Uplink Adjacent Satellite C/I (dB)                  17.2                17.2                16.6                17.6
Intermodulation C/IM (dB)                            ----               20.1                19.9                22.1
Downlink Thermal C/N (dB)                           17.2                16.2                 9.1                14.3
Downlink Interference C/I (dB)                      26.8                25.3                21.7                26.1
Downlink Adjacent Satellite C/I (dB)                13.8                13.5                 9.1                10.9


Subtotal C/N (dB)                                   10.6                 9.8                 5.4                 8.3
Antenna Mispointing and Other Losses (dB)            0.3                 0.3                 0.3                 0.3
Total C/N (dB)                                      10.3                 9.5                 5.1                 7.6
Minimum Required C/N (dB)                            7.3                 7.3                 1.8                 4.6
CARRIER DENSITY LEVELS
Uplink Power Density (dBW/Hz)                       -47.8               -43.8               -44.4               -39.9
Downlink EIRP Density At Beam Peak (dBW/Hz)         -39.9               -41.3               -42.1               -41.4




                                                     Page 19 of 19



Document Created: 2016-04-11 10:17:50
Document Modified: 2016-04-11 10:17:50

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